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IQ Test

Fun & RandomReaction and Skill Tests
Number patterns
1. What comes next: 2, 4, 8, 16, ?
2. What comes next: 1, 1, 2, 3, 5, 8, ?
3. What comes next: 3, 9, 27, 81, ?
4. Which letter comes next: A, C, F, J, ?
Words and categories
5. Book is to read as fork is to …
6. Which word does not belong?
Logic and trick questions
7. All bloops are razzies and all razzies are lazzies. Are all bloops lazzies?
8. Three machines make three widgets in three minutes. How long do 100 machines take to make 100 widgets?
9. Mary's father has five daughters: Nana, Nene, Nini and Nono. Who is the fifth?
10. A bat and a ball cost $1.10 together. The bat costs $1.00 more than the ball. What does the ball cost?
Estimated IQ-style score —
Correct answers (of 10)
—
Percentile on a mean-100, SD-15 curve
—
Band
—
Where the score sits
The chart appears with your result

This quick IQ test has ten reasoning puzzles: number series, an analogy, an odd-one-out, a syllogism and three classic trick questions. Each correct answer adds 6 points to a base of 70, so 5 of 10 scores 100 and a perfect 10 scores 130, the 97.7th percentile. It is a light quiz, not a clinical IQ assessment.

About this tool

Most people searching for an IQ test want a short set of puzzles and a number at the end. This page gives exactly that, and it is honest about what the number means. The ten items cover pattern spotting in number and letter series, verbal analogy, categorising, deductive logic and the kind of trick questions that reward slowing down. Your answers are marked as you pick them, and the table lists every puzzle with your answer beside the correct one, so you can see which reasoning step went wrong. The raw count is placed on the familiar IQ scale with a mean of 100 and a standard deviation of 15, along with the matching percentile. The limit is real: ten puzzles with no norming sample cannot measure intelligence. Tests such as the WAIS take over an hour, are given by a psychologist and are scored against thousands of people of your age.

How to use it

  1. Work through the number patterns

    Pick the next term in each series. Look at the gap between terms, then at how the gap itself changes.

  2. Answer the word items

    Choose the word that completes the analogy and the one that does not belong with the others.

  3. Take the logic questions slowly

    The last four are built to trigger a fast wrong answer. Check each choice against the wording before selecting it.

  4. Read the score and the answer table

    The score, percentile and band update with every answer. The table and the scale show which puzzles you missed and where the score sits.

Examples

Ten out of ten

1. What comes next: 2, 4, 8, 16, ?
32
2. What comes next: 1, 1, 2, 3, 5, 8, ?
13
5. Book is to read as fork is to …
Eat
6. Which word does not belong?
Carrot
7. All bloops are razzies and all razzies are lazzies. Are all bloops lazzies?
Yes
4. Which letter comes next: A, C, F, J, ?
O
8. Three machines make three widgets in three minutes. How long do 100 machines take to make 100 widgets?
3 minutes
9. Mary's father has five daughters: Nana, Nene, Nini and Nono. Who is the fifth?
Mary
3. What comes next: 3, 9, 27, 81, ?
243
10. A bat and a ball cost $1.10 together. The bat costs $1.00 more than the ball. What does the ball cost?
5 cents

Result Estimated IQ-style score: 130
Correct answers (of 10): 10
Percentile on a mean-100, SD-15 curve: 97.7%
Band: Very high

  1. Correct answers: 10 of 10
  2. Score = 70 + 6 × 10 = 130
  3. z = (130 − 100) ÷ 15 = 2
  4. Percentile = normal CDF(2) = 97.7%

A perfect sheet maps to 130, two standard deviations above 100, which the normal curve puts at the 97.7th percentile.

Five right, including the classic traps missed

1. What comes next: 2, 4, 8, 16, ?
32
2. What comes next: 1, 1, 2, 3, 5, 8, ?
13
5. Book is to read as fork is to …
Eat
6. Which word does not belong?
Carrot
7. All bloops are razzies and all razzies are lazzies. Are all bloops lazzies?
Yes
4. Which letter comes next: A, C, F, J, ?
N
8. Three machines make three widgets in three minutes. How long do 100 machines take to make 100 widgets?
100 minutes
9. Mary's father has five daughters: Nana, Nene, Nini and Nono. Who is the fifth?
Nunu
3. What comes next: 3, 9, 27, 81, ?
162
10. A bat and a ball cost $1.10 together. The bat costs $1.00 more than the ball. What does the ball cost?
10 cents

Result Estimated IQ-style score: 100
Correct answers (of 10): 5
Percentile on a mean-100, SD-15 curve: 50%
Band: Average

  1. Correct answers: 5 of 10
  2. Score = 70 + 6 × 5 = 100
  3. z = (100 − 100) ÷ 15 = 0
  4. Percentile = normal CDF(0) = 50%

The number patterns and word items were right but the widget, sisters and bat-and-ball tricks were missed, giving the mean score of 100.

Three answered, all right

1. What comes next: 2, 4, 8, 16, ?
32
2. What comes next: 1, 1, 2, 3, 5, 8, ?
13
10. A bat and a ball cost $1.10 together. The bat costs $1.00 more than the ball. What does the ball cost?
5 cents

Result Estimated IQ-style score: 88
Correct answers (of 10): 3
Percentile on a mean-100, SD-15 curve: 21.2%
Band: Low average

  1. Correct answers: 3 of 10
  2. Score = 70 + 6 × 3 = 88
  3. z = (88 − 100) ÷ 15 = -0.8
  4. Percentile = normal CDF(-0.8) = 21.2%

Unanswered puzzles count as wrong, so three correct answers give 70 + 18 = 88.

How it is calculated

Score = 70 + 6 × C; z = (Score − 100) ÷ 15; Percentile = Φ(z) × 100

C
number of correct answers, 0 to 10
z
distance from the mean in standard deviations
Φ
cumulative standard normal distribution

The raw count is spread linearly over the range 70 to 130, which is plus or minus two standard deviations on a scale with mean 100 and SD 15. Five correct sits on the mean, and each extra answer moves the score 0.4 SD. The percentile comes from the normal curve, the same model professional tests use for their published norms. Because this quiz has never been normed on a population, the mapping is a convention chosen for readability, not an empirical estimate.

When not to use it

  • For school placement, a diagnosis or any legal or employment decision.
  • To compare yourself with a score from a supervised test such as the WAIS or Stanford-Binet.
  • After you have already seen the answers, since a retake only measures recall.

Common mistakes

  • Answering the bat-and-ball item with 10 cents; that makes the bat only 90 cents dearer.
  • Reading 100 machines as 100 times slower; each machine still needs three minutes per widget.
  • Treating the score as a fixed trait when sleep, mood and familiarity with puzzles all move it.

Frequently asked questions

How is the score worked out?

Every correct answer is worth 6 points on top of a base of 70. Zero correct gives 70, five gives 100 and ten gives 130. That spread covers two standard deviations either side of the mean on the usual IQ scale, and the percentile is read from the normal curve.

Is this a real IQ score?

No. A real IQ score comes from a long, supervised battery whose results are compared with a large sample of people your age. Ten puzzles marked on a fixed scale give a rough sense of how you handle pattern and logic items, nothing more.

What does the percentile mean?

It is the share of a normally distributed population expected to score below you on a mean-100, SD-15 scale. A score of 130 sits at the 97.7th percentile, so about 2.3 percent of people would be expected to score higher.

Why is the bat-and-ball answer 5 cents?

If the ball costs 5 cents, the bat costs $1.05, which is exactly $1.00 more, and the two add up to $1.10. The tempting answer of 10 cents would make the bat $1.00, only 90 cents more than the ball. It comes from Shane Frederick's Cognitive Reflection Test.

What happens to questions I skip?

A skipped puzzle counts as wrong, and a note under the result says how many were left blank. If no puzzle is answered at all, no score is shown.

Why does the scale stop at 70 and 130?

With only ten items the quiz cannot separate people beyond two standard deviations from the mean. Stretching the range further would suggest a precision that ten questions cannot support.

Which abilities do the puzzles cover?

Four items test numeric and letter series, two test verbal relationships and categories, one tests deductive logic, and three are reflection items where the first answer that springs to mind is wrong.

Cite this tool

Using this tool in an assignment, article or report? Copy a citation, or a link for your website.

APA

Tools Directory Editorial Team. (2026, October 25). IQ Test. Tools Directory. Retrieved October 27, 2026, from https://tools.milunir.com/fun-random/reaction-and-skill-tests/iq-test/

MLA

Tools Directory Editorial Team. “IQ Test.” Tools Directory, 25 Oct. 2026, https://tools.milunir.com/fun-random/reaction-and-skill-tests/iq-test/. Accessed 27 Oct. 2026.

Chicago

Tools Directory Editorial Team. “IQ Test.” Tools Directory. Last modified October 25, 2026. Accessed October 27, 2026. https://tools.milunir.com/fun-random/reaction-and-skill-tests/iq-test/.

Link<a href="https://tools.milunir.com/fun-random/reaction-and-skill-tests/iq-test/">IQ Test – Tools Directory</a>